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问 各位大虾，请教在WINAVR20040404中多文件编译的问题

我在编译多文件工程的时候出现了以下的信息，请问怎样才能够解决它？谢谢！

make.exe: *** No rule to make target `panal.o', needed by `main.elf'.  Stop.

我的工程中有八个文件：
main.c                         configer.h
device.c                       device.h
panal.c                        panal.h
work.c                          work.h

全部的信息是：
-------- begin --------
AVR-gcc (GCC) 3.3.2
Copyright (C) 2003 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


Compiling: main.c
AVR-gcc -c -mmcu=atmega8 -I. -g   -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wa,-adhlns=main.lst  -std=gnu99 -Wp,-M,-MP,-MT,main.o,-MF,.dep/main.o.d main.c -o main.o
make.exe: *** No rule to make target `panal.o', needed by `main.elf'.  Stop.

> Process Exit Code: 2

答 1: 我想你应该把makefile贴出来，才好看问题在哪 答 2: 好的，谢谢！# Hey Emacs, this is a -*- makefile -*-
#
# WinAVR Sample makefile written by Eric B. Weddington, J鰎g Wunsch, et al.
# Released to the Public Domain
# Please read the make user manual!
#
# Additional material for this makefile was submitted by:
#  Tim Henigan
#  Peter Fleury
#  Reiner Patommel
#  Sander Pool
#  Frederik Rouleau
#  Markus Pfaff
#
# On command line:
#
# make all = Make software.
#
# make clean = Clean out built project files.
#
# make coff = Convert ELF to AVR COFF (for use with AVR Studio 3.x or VMLAB).
#
# make extcoff = Convert ELF to AVR Extended COFF (for use with AVR Studio
#                4.07 or greater).
#
# make program = Download the hex file to the device, using AVRdude.  Please
#                customize the AVRdude settings below first!
#
# make filename.s = Just compile filename.c into the assembler code only
#
# To rebuild project do "make clean" then "make all".
#


# MCU name
MCU = atmega8

# Output format. (CAN be srec, ihex, binary)
FORMAT = ihex

# Target file name (without extension).
TARGET = main


# List C source files here. (C dependencies are automatically generated.)
SRC += $(TARGET).c main.c panal.c device.c work.c
#SRC += main.c panal.c device.c work.c

# List Assembler source files here.
# Make them always end in a capital .S.  Files ending in a lowercase .s
# will not be considered source files but generated files (assembler
# output from the compiler), and will be deleted upon "make clean"!
# Even though the DOS/Win* filesystem matches both .s and .S the same,
# it will preserve the spelling of the filenames, and gcc itself does
# care about how the name is spelled on its command-line.
ASRC =



# Optimization level, CAN be [0, 1, 2, 3, s].
# 0 = turn off optimization. s = optimize for size.
# (Note: 3 is not always the best optimization level. See AVR-libc FAQ.)
OPT = s


# List any extra directories to look for include files here.
#     Each directory must be seperated by a space.
EXTRAINCDIRS =


# Compiler flag to set the C Standard level.
# c89   - "ANSI" C
# gnu89 - c89 plus GCC extensions
# c99   - ISO C99 standard (not yet fully implemented)
# gnu99 - c99 plus GCC extensions
CSTANDARD = -std=gnu99

# Place -D or -U options here
CDEFS =

# Place -I options here
CINCS =


# Compiler flags.
#  -g:           generate debugging information
#  -O*:          optimization level
#  -f...:        tuning, see GCC manual and AVR-libc documentation
#  -Wall...:     warning level
#  -Wa,...:      tell GCC to pass this to the assembler.
#    -adhlns...: create assembler listing
CFLAGS = -g
CFLAGS += $(CDEFS) $(CINCS)
CFLAGS += -O$(OPT)
CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
CFLAGS += -Wall -Wstrict-prototypes
CFLAGS += -Wa,-adhlns=$(<:.c=.lst)
CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
CFLAGS += $(CSTANDARD)



# Assembler flags.
#  -Wa,...:   tell GCC to pass this to the assembler.
#  -ahlms:    create listing
#  -gstabs:   have the assembler create line number information; note that
#             for use in COFF files, additional information about filenames
#             and function names needs to be present in the assembler source
#             files -- see AVR-libc docs [FIXME: not yet described there]
ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs



#Additional libraries.

# Minimalistic printf version
PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min

# Floating point printf version (requires MATH_LIB = -lm below)
PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt

PRINTF_LIB =

# Minimalistic sCANf version
SCANF_LIB_MIN = -Wl,-u,vfsCANf -lsCANf_min

# Floating point + %[ sCANf version (requires MATH_LIB = -lm below)
SCANF_LIB_FLOAT = -Wl,-u,vfsCANf -lsCANf_flt

SCANF_LIB =

MATH_LIB = -lm

# External memory options

# 64 KB of external RAM, starting after internal RAM (ATmega128!),
# used for variables (.data/.bss) and heap (malloc()).
#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff

# 64 KB of external RAM, starting after internal RAM (ATmega128!),
# only used for heap (malloc()).
#EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff

EXTMEMOPTS =

# Linker flags.
#  -Wl,...:     tell GCC to pass this to linker.
#    -Map:      create map file
#    --cref:    add cross reference to  map file
LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
LDFLAGS += $(EXTMEMOPTS)
LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)




# Programming support using AVRdude. Settings and variables.

# Programming hardware: alf AVR910 AVRisp bascom bsd
# dt006 pAVR PICoweb pony-stk200 sp12 stk200 stk500
#
# Type: AVRdude -c ?
# to get a full listing.
#
AVRDUDE_PROGRAMMER = stk500

# com1 = serial port. Use lpt1 to connect to parallel port.
AVRDUDE_PORT = com1    # programmer connected to serial device

AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep


# Uncomment the following if you want AVRdude's erase cycle counter.
# Note that this counter needs to be initialized first using -Yn,
# see AVRdude manual.
#AVRDUDE_ERASE_COUNTER = -y

# Uncomment the following if you do /not/ wish a verification to be
# performed after programming the device.
#AVRDUDE_NO_VERIFY = -V

# Increase verbosity level.  Please use this when submitting bug
# reports about AVRdude. See <http://savannah.nongnu.org/projects/AVRdude>
# to submit bug reports.
#AVRDUDE_VERBOSE = -v -v

AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)



# ---------------------------------------------------------------------------

# Define directories, if needed.
DIRAVR = c:/winAVR
DIRAVRBIN = $(DIRAVR)/bin
DIRAVRUTILS = $(DIRAVR)/utils/bin
DIRINC = .
DIRLIB = $(DIRAVR)/AVR/lib


# Define programs and commands.
SHELL = sh
CC = AVR-gcc
OBJCOPY = AVR-objcopy
OBJDUMP = AVR-objdump
SIZE = AVR-size
NM = AVR-nm
AVRDUDE = AVRdude
REMOVE = rm -f
COPY = cp




# Define Messages
# English
MSG_ERRORS_NONE = Errors: none
MSG_BEGIN = -------- begin --------
MSG_END = --------  end  --------
MSG_SIZE_BEFORE = Size before:
MSG_SIZE_AFTER = Size after:
MSG_COFF = Converting to AVR COFF:
MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
MSG_FLASH = Creating load file for Flash:
MSG_EEPROM = Creating load file for EEPROM:
MSG_EXTENDED_LISTING = Creating Extended Listing:
MSG_SYMBOL_TABLE = Creating Symbol Table:
MSG_LINKING = Linking:
MSG_COMPILING = Compiling:
MSG_ASSEMBLING = Assembling:
MSG_CLEANING = Cleaning project:




# Define all object files.
OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)

# Define all listing files.
LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)


# Compiler flags to generate dependency files.
GENDEPFLAGS = -Wp,-M,-MP,-MT,$(*F).o,-MF,.dep/$(@F).d


# Combine all necessary flags and optional flags.
# Add target processor to flags.
ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)
ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)





# Default target.
all: begin gccversion sizebefore build sizeafter finished end

build: elf hex eep lss sym

elf: $(TARGET).elf
hex: $(TARGET).hex
eep: $(TARGET).eep
lss: $(TARGET).lss
sym: $(TARGET).sym



# Eye CANdy.
# AVR Studio 3.x does not check make's exit code but relies on
# the following magic strings to be generated by the compile job.
begin:
    @echo
    @echo $(MSG_BEGIN)

finished:
    @echo $(MSG_ERRORS_NONE)

end:
    @echo $(MSG_END)
    @echo


# Display size of file.
HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
ELFSIZE = $(SIZE) -A $(TARGET).elf
sizebefore:
    @if ][ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fi

sizeafter:
    @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); echo; fi



# Display compiler version information.
gccversion :
    @$(CC) --version



# Program the device.  
program: $(TARGET).hex $(TARGET).eep
    $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)




# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
COFFCONVERT=$(OBJCOPY) --debugging \
--change-section-address .data-0x800000 \
--change-section-address .bss-0x800000 \
--change-section-address .noinit-0x800000 \
--change-section-address .eeprom-0x810000


coff: $(TARGET).elf
    @echo
    @echo $(MSG_COFF) $(TARGET).cof
    $(COFFCONVERT) -O coff-AVR $< $(TARGET).cof


extcoff: $(TARGET).elf
    @echo
    @echo $(MSG_EXTENDED_COFF) $(TARGET).cof
    $(COFFCONVERT) -O coff-ext-AVR $< $(TARGET).cof



# Create final output files (.hex, .eep) from ELF output file.
%.hex: %.elf
    @echo
    @echo $(MSG_FLASH) $@
    $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@

%.eep: %.elf
    @echo
    @echo $(MSG_EEPROM) $@
    -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
    --change-section-lma .eeprom=0 -O $(FORMAT) $< $@

# Create extended listing file from ELF output file.
%.lss: %.elf
    @echo
    @echo $(MSG_EXTENDED_LISTING) $@
    $(OBJDUMP) -h -S $< > $@

# Create a symbol table from ELF output file.
%.sym: %.elf
    @echo
    @echo $(MSG_SYMBOL_TABLE) $@
    $(NM) -n $< > $@



# Link: create ELF output file from object files.
.SECONDARY : $(TARGET).elf
.PRECIOUS : $(OBJ)
%.elf: $(OBJ)
    @echo
    @echo $(MSG_LINKING) $@
    $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)


# Compile: create object files from C source files.
%.o : %.c
    @echo
    @echo $(MSG_COMPILING) $<
    $(CC) -c $(ALL_CFLAGS) $< -o $@


# Compile: create assembler files from C source files.
%.s : %.c
    $(CC) -S $(ALL_CFLAGS) $< -o $@


# Assemble: create object files from assembler source files.
%.o : %.S
    @echo
    @echo $(MSG_ASSEMBLING) $<
    $(CC) -c $(ALL_ASFLAGS) $< -o $@



# Target: clean project.
clean: begin clean_list finished end

clean_list :
    @echo
    @echo $(MSG_CLEANING)
    $(REMOVE) $(TARGET).hex
    $(REMOVE) $(TARGET).eep
    $(REMOVE) $(TARGET).obj
    $(REMOVE) $(TARGET).cof
    $(REMOVE) $(TARGET).elf
    $(REMOVE) $(TARGET).map
    $(REMOVE) $(TARGET).obj
    $(REMOVE) $(TARGET).a90
    $(REMOVE) $(TARGET).sym
    $(REMOVE) $(TARGET).lnk
    $(REMOVE) $(TARGET).lss
    $(REMOVE) $(OBJ)
    $(REMOVE) $(LST)
    $(REMOVE) $(SRC:.c=.s)
    $(REMOVE) $(SRC:.c=.d)
    $(REMOVE) .dep/*



# Include the dependency files.
-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)


# Listing of phony targets.
.PHONY : all begin finish end sizebefore sizeafter gccversion \
build elf hex eep lss sym coff extcoff \
clean clean_list program






答 3: 试一试我的makefile:
#试一试我的makefile:

# WinAVR Sample makefile written by Eric B. Weddington, J&ouml;rg Wunsch, et al.
# Released to the Public Domain
# Please read the make user manual!
#
#
# On command line:
#
# make all = Make software.
#
# make clean = Clean out built project files.
#
# make coff = Convert ELF to AVR COFF (for use with AVR Studio 3.x or VMLAB).
#
# make extcoff = Convert ELF to AVR Extended COFF (for use with AVR Studio
#                4.07 or greater).
#
# make program = Download the hex file to the device, using AVRdude.  Please
#                customize the AVRdude settings below first!
#
# make filename.s = Just compile filename.c into the assembler code only
#
# To rebuild project do "make clean" then "make all".
#


#============= MCU&Ntilde;&iexcl;&Ocirc;&ntilde; ===========================
# MCU name
MCU = atmega8

#============= &Ecirc;&auml;&sup3;&ouml;&cedil;&ntilde;&Ecirc;&frac12;&Ntilde;&iexcl;&Ocirc;&ntilde; ======================
# Output format. (CAN be srec, ihex, binary)
FORMAT = ihex

#============= &Auml;&iquest;±ê&Icirc;&Auml;&frac14;&thorn;&Atilde;&ucirc;(&sup2;&raquo;&acute;&oslash;&Agrave;&copy;&Otilde;&sup1;&Atilde;&ucirc;) ============
# Target file name (without extension).
TARGET = main

#============= &Oacute;&Aring;&raquo;&macr;&frac14;&para;±&eth;&Ntilde;&iexcl;&Ocirc;&ntilde; ======================
# Optimization level, CAN be [0, 1, 2, 3, s]. 0 turns off optimization.
# (Note: 3 is not always the best optimization level. See AVR-libc FAQ.)
OPT = s


#============= C &Ocirc;&acute;&Icirc;&Auml;&frac14;&thorn;&Aacute;&ETH;±í("\"&Icirc;&ordf;&raquo;&raquo;&ETH;&ETH;·&ucirc;&ordm;&Aring;) =======
# List C source files here. (C dependencies are automatically generated.)
SRC = $(TARGET).c

# If there is more than one source file, append them above, or adjust and
# uncomment the following:
SRC += panal.c device.c work.c

# You CAN also wrap lines by appending a backslash to the end of the line:
#SRC += baz.c \
#xyzzy.c



#============= ASM &Ocirc;&acute;&Icirc;&Auml;&frac14;&thorn;&Aacute;&ETH;±í ====================
# List Assembler source files here.
# Make them always end in a capital .S.  Files ending in a lowercase .s
# will not be considered source files but generated files (assembler
# output from the compiler), and will be deleted upon "make clean"!
# Even though the DOS/Win* filesystem matches both .s and .S the same,
# it will preserve the spelling of the filenames, and gcc itself does
# care about how the name is spelled on its command-line.
ASRC =




#============= C±à&Ograve;&euml;&Ntilde;&iexcl;&Iuml;&icirc; =========================
# Optional compiler flags.
#  -g:        generate debugging information (for GDB, or for COFF conversion)
#  -O*:       optimization level
#  -f...:     tuning, see gcc manual and AVR-libc documentation
#  -Wall...:  warning level
#  -Wa,...:   tell GCC to pass this to the assembler.
#    -ahlms:  create assembler listing
CFLAGS = -g -O$(OPT) \
    -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums \
    -Wall -Wstrict-prototypes \
    -Wa,-ahlms=$(<:.c=.lst)



#============= &raquo;&atilde;±à&AElig;÷&Ntilde;&iexcl;&Iuml;&icirc; ========================
# Optional assembler flags.
#  -Wa,...:   tell GCC to pass this to the assembler.
#  -ahlms:    create listing
#  -gstabs:   have the assembler create line number information; note that
#             for use in COFF files, additional information about filenames
#             and function names needs to be present in the assembler source
#             files -- see AVR-libc docs [FIXME: not yet described there]
ASFLAGS = -Wa,-ahlms=$(<:.S=.lst),-gstabs



#============= &Aacute;&not;&frac12;&Oacute;&AElig;÷&Ntilde;&iexcl;&Iuml;&icirc; ========================
# Optional linker flags.
#  -Wl,...:   tell GCC to pass this to linker.
#  -Map:      create map file
#  --cref:    add cross reference to  map file
LDFLAGS = -Wl,-Map=$(TARGET).map,--cref



#============= &cedil;&frac12;&frac14;&Oacute;&iquest;&acirc;&Ntilde;&iexcl;&Iuml;&icirc; ========================
# Additional libraries
#
# Minimalistic printf version
#LDFLAGS += -Wl,-u,vfprintf -lprintf_min
#
# Floating point printf version (requires -lm below)
#LDFLAGS +=  -Wl,-u,vfprintf -lprintf_flt
#
# -lm = math library
LDFLAGS += -lm




# Programming support using AVRdude. Settings and variables.

# Programming hardware: AVRisp stk500 AVR910 pAVR stk200 pony-stk200
#                       dt006 bascom alf
# Type: AVRdude -c ?
# to get a full listing.
#
AVRDUDE_PROGRAMMER = stk500


AVRDUDE_PORT = com1       # programmer connected to serial device
#AVRDUDE_PORT = lpt1    # programmer connected to parallel port

AVRDUDE_ERASE = -e
AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)


# Uncomment the following if you want AVRdude's erase cycle counter.
# Note that this counter needs to be initialized first using -Yn,
# see AVRdude manual.
#AVRDUDE_ERASE += -y
#
# Uncomment the following if you do /not/ wish a verification to be
# performed after programming the device.
#AVRDUDE_FLAGS += -V
#
# Increase verbosity level.  Please use this when submitting bug
# reports about AVRdude. See <http://savannah.nongnu.org/projects/AVRdude>
# to submit bug reports.
#AVRDUDE_FLAGS += -v -v




# ---------------------------------------------------------------------------

#============= &Ouml;&cedil;&para;¨&Auml;&iquest;&Acirc;&frac14;&pound;&not;&Egrave;&ccedil;&sup1;&ucirc;&ETH;è&Ograve;&ordf; ================
# Define directories, if needed.
DIRAVR = c:/winAVR
DIRAVRBIN = $(DIRAVR)/bin
DIRAVRUTILS = $(DIRAVR)/utils/bin
DIRINC = .
DIRLIB = $(DIRAVR)/AVR/lib


#============= &para;¨&Ograve;&aring;&Atilde;ü&Aacute;&icirc;(&sup1;¤&frac34;&szlig;&Egrave;í&frac14;&thorn;&Atilde;&ucirc;&sup3;&AElig;) ============
# Define programs and commands.
SHELL = sh

CC = AVR-gcc

OBJCOPY = AVR-objcopy
OBJDUMP = AVR-objdump
SIZE = AVR-size


# Programming support using AVRdude.
AVRDUDE = AVRdude


REMOVE = rm -f
COPY = cp

HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
#ELFSIZE = $(SIZE) -A $(TARGET).elf
ELFSIZE = $(SIZE) $(TARGET).elf

FINISH = echo Errors: none
BEGIN = echo -------- begin --------
END = echo --------  end  --------




# Define all object files.
OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)

# Define all listing files.
LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)

# Combine all necessary flags and optional flags.
# Add target processor to flags.
ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS)
ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)



# Default target.
all: begin gccversion sizebefore $(TARGET).elf $(TARGET).hex $(TARGET).eep \
    $(TARGET).lss sizeafter finished end


# Eye CANdy.
# AVR Studio 3.x does not check make's exit code but relies on
# the following magic strings to be generated by the compile job.
begin:
    @$(BEGIN)

finished:
    @$(FINISH)

end:
    @$(END)


# Display size of file.
sizebefore:
    @if [ -f $(TARGET).elf ]; then echo Size before:; $(ELFSIZE);fi

sizeafter:
    @if [ -f $(TARGET).elf ]; then echo Size after:; $(ELFSIZE);fi



# Display compiler version information.
gccversion :
    $(CC) --version




# Convert ELF to COFF for use in debugging / simulating in
# AVR Studio or VMLAB.
COFFCONVERT=$(OBJCOPY) --debugging \
    --change-section-address .data-0x800000 \
    --change-section-address .bss-0x800000 \
    --change-section-address .noinit-0x800000 \
    --change-section-address .eeprom-0x810000


coff: $(TARGET).elf
    $(COFFCONVERT) -O coff-AVR $< $(TARGET).cof


extcoff: $(TARGET).elf
    $(COFFCONVERT) -O coff-ext-AVR $< $(TARGET).cof




# Program the device.  The magic trickery below examines the .eep hex
# file whether the size is > 0, and if so, reprograms the EEPROM as
# well.  Just delete these lines if you don't want this feature (like
# on the ATmegas with the EESAVE fuse bit set).
program: $(TARGET).hex $(TARGET).eep
    $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_ERASE)
    $(AVRDUDE) $(AVRDUDE_FLAGS) -i $(TARGET).hex
    @$(SIZE) --target=$(FORMAT) $(TARGET).eep | while read line; \
    do \
        set -- $$line; \
        if [ "x$$1" != "x0" ] ; then continue; fi; \
        if [ "$$2" -ne 0 ] ; then \
            echo $(AVRDUDE) $(AVRDUDE_FLAGS) -m eeprom -i $(TARGET).eep; \
            $(AVRDUDE) $(AVRDUDE_FLAGS) -m eeprom -i $(TARGET).eep; \
            break; \
        fi; \
    done


# Create final output files (.hex, .eep) from ELF output file.
%.hex: %.elf
    $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@

%.eep: %.elf
    -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
    --change-section-lma .eeprom=0 -O $(FORMAT) $< $@

# Create extended listing file from ELF output file.
%.lss: %.elf
    $(OBJDUMP) -h -S $< > $@



# Link: create ELF output file from object files.
.SECONDARY : $(TARGET).elf
.PRECIOUS : $(OBJ)
%.elf: $(OBJ)
    $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)


# Compile: create object files from C source files.
%.o : %.c
    $(CC) -c $(ALL_CFLAGS) $< -o $@


# Compile: create assembler files from C source files.
%.s : %.c
    $(CC) -S $(ALL_CFLAGS) $< -o $@


# Assemble: create object files from assembler source files.
%.o : %.S
    $(CC) -c $(ALL_ASFLAGS) $< -o $@






# Target: clean project.
clean: begin clean_list finished end

clean_list :
    $(REMOVE) $(TARGET).hex
    $(REMOVE) $(TARGET).eep
    $(REMOVE) $(TARGET).obj
    $(REMOVE) $(TARGET).cof
    $(REMOVE) $(TARGET).elf
    $(REMOVE) $(TARGET).map
    $(REMOVE) $(TARGET).obj
    $(REMOVE) $(TARGET).a90
    $(REMOVE) $(TARGET).sym
    $(REMOVE) $(TARGET).lnk
    $(REMOVE) $(TARGET).lss
    $(REMOVE) $(OBJ)
    $(REMOVE) $(LST)
    $(REMOVE) $(SRC:.c=.s)
    $(REMOVE) $(SRC:.c=.d)


# Automatically generate C source code dependencies.
# (Code originally taken from the GNU make user manual and modified
# (See README.txt Credits).)
#
# Note that this will work with sh (bash) and sed that is shipped with WinAVR
# (see the SHELL variable defined above).
# This may not work with other shells or other seds.
#
%.d: %.c
    set -e; $(CC) -MM $(ALL_CFLAGS) $< \
    | sed 's,\(.*\)\.o[ :]*,\1.o \1.d : ,g' > $@; \
    [ -s $@ ] || rm -f $@


# Remove the '-' if you want to see the dependency files generated.
-include $(SRC:.c=.d)



# Listing of phony targets.
.PHONY : all begin finish end sizebefore sizeafter gccversion coff extcoff \
    clean clean_list program


答 4: 感谢yfzhang，我试一试 答 5: 是不是不应该加main.c猜的